African Arthropods/Chalcid wasps with branched antennae

The males of some Chalcidoidea have branched (pectinate) antennae. Links to images of some of these:

Elasmus on iNaturalist.

Pnigalio in a ZooKeys paper.

Pnigalio on the University of California site.

Necremnus in a scientific paper.

Sympiesis in the Catalogue of Organisms blog.

Pentacladia specimen in the Natural History Museum.

Eulophinae on BugGuide.

Eulophinae on BugGuide.

Eulophinae on BugGuide.

Tanaostigmodes, Tanaostigmatidae on BugGuide.